Experimental study on mechanical performance of polydimethylsiloxane (PDMS) at various temperatures

Zhang, Guiguan; Sun, Yuli; Qian, Bingkun; Gao, Hang; Zuo, Dunwen

doi:10.1016/j.polymertesting.2020.106670

Cited by 67 publications

(37 citation statements)

References 38 publications

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“…It shows outstanding elasticity (elastic modulus designable from 0.1 to 5 MPa), compressive strength (>100 MPa), durability (working temperature from −25 to 150 °C), optical transparency (absorption edge < 300 nm) and biocompatibility. [160][161] Epoxy resin has a wide range of mechanical properties. The epoxy resin widely used for ML materials possesses a high elastic modulus, a large compressive strength, excellent durability, and good optical transparency.…”

Section: Composite Filmsmentioning

confidence: 99%

Mechanoluminescence Rebrightening the Prospects of Stress Sensing: A Review

2021

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Mechanoluminescence (ML) is the emission of light when a solid material is subjected to stress. [8][9] The intensity of the ML shows a strong correlation with the applied stress, making it suitable for stress sensing. ML stress sensing is based on a unique transduction principle from stress to photons, which paves the way for advanced stress sensing. In particular, ML-based sensing shows significant advantages of distributed detection and remote response to an applied stress by virtue of photon transmission through space. In addition, excellent stretchability, biocompatibility, and self-powering ability can be achieved within the stress-tophoton transduction units since electronic conduction is not needed. Importantly, ML-based sensing enables compensation of the shortcomings of conventional sensing technologies for emerging applications. Considering the many extraordinary performance characteristics, ML may hopefully rebrighten the prospects of stress sensing.Over the past few decades, ML materials and ML-based stress sensing have been extensively studied. Great efforts have been made to develop a large number of ML materials, deeply understand the ML mechanism, and boost the potential for stress sensing applications. Several review papers have been devoted to ML and its applications. [10][11][12][13][14][15][16][17] Bunzil and Wong summarized ML materials and stress sensors based on lanthanide compounds. [10] Xie and Li surveyed the progress in ML compounds with a focus on fractoluminescence. [11] An overview of inorganic ML compounds was presented by Feng and Smet, which particularly provides deep insight into the crystal structures and their relation to ML. [12] Additionally, Zhang et al. reviewed inorganic ML compounds, concentrating on their compositions, preparation, characterizations, mechanisms, and applications. [13] However, compared with materials and mechanisms, less attention has been paid to the technical performance of ML-based stress sensing and its relevance to applications. Obviously, reasonable analyses of the up-to-date performance are beneficial for properly assessing the potential for future applications.In this paper, we start with a brief overview of the desired performance characteristics of advanced stress sensing for several new applications (Section 2). The state-of-arts and challenges are highlighted. In Section 3, ML materials, ML-based sensors, and technical features will be discussed in an attempt to comprehensively evaluate ML-based sensing technology andThe emergence of new applications, such as in artificial intelligence, the internet of things, and biotechnology, has driven the evolution of stress sensing technology. For these emerging applications, stretchability, remoteness, stress distribution, a multimodal nature, and biocompatibility are important performance characteristics of stress sensors. Mechanoluminescence (ML)-based stress sensing has attracted widespread attention because of its characteristics of remoteness and having a distributed response to mechanical stimuli...

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Section: Composite Filmsmentioning

confidence: 99%

Mechanoluminescence Rebrightening the Prospects of Stress Sensing: A Review

2021

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“…The tensile values rise with the increasing temperature until it reaches 125 °C; temperatures above this value reduce the tensile strength, but Young’s modulus continues growing and presents a linear relation with the temperature. [ 68 , 69 ]. An increase in the curing agent ratio can lead a reduction in PDMS’s flexibility and, consequently, reduces the Young’s Modulus [ 70 , 71 ].…”

Section: Polydimethylsiloxanementioning

confidence: 99%

Polydimethylsiloxane Composites Characterization and Its Applications: A Review

et al. 2021

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Polydimethylsiloxane (PDMS) is one of the most promising elastomers due its remarkable proprieties such as good thermal stability, biocompatibility, corrosion resistance, flexibility, low cost, ease of use, chemically inertia, hyperplastic characteristics, and gas permeability. Thus, it can be used in areas such as microfluidic systems, biomedical devices, electronic components, membranes for filtering and pervaporation, sensors, and coatings. Although pure PDMS has low mechanical properties, such as low modulus of elasticity and strength, it can be improved by mixing the PDMS with other polymers and by adding particles or reinforcements. Fiber-reinforced PDMS has proved to be a good alternative to manufacturing flexible displays, batteries, wearable devices, tactile sensors, and energy harvesting systems. PDMS and particulates are often used in the separation of liquids from wastewater by means of porosity followed by hydrophobicity. Waxes such as beeswax and paraffin have proved to be materials capable of improving properties such as the hydrophobic, corrosion-resistant, thermal, and optical properties of PDMS. Finally, when blended with polymers such as poly (vinyl chloride-co-vinyl acetate), PDMS becomes a highly efficient alternative for membrane separation applications. However, to the best of our knowledge there are few works dedicated to the review and comparison of different PDMS composites. Hence, this review will be focused on PDMS composites, their respective applications, and properties. Generally, the combination of elastomer with fibers, particles, waxes, polymers, and others it will be discussed, with the aim of producing a review that demonstrates the wide applications of this material and how tailored characteristics can be reached for custom applications.

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“…Carbon-based materials display obvious absorption of the solar broadband spectra [ 18 ], Here, acetylene black was employed to fabricate a photothermal actuation device that was principally constructed of two layers: an actuation layer made of AB/PDMS and an inert layer of Kapton film. The coefficient of the thermal expansion (CTE) and Young’s modulus of the AB/PDMS and Kapton layers were different [ 19 , 20 ], which determined the actuator properties under thermal-induced deformation. Attributed to the strong absorption of AB microparticles in the spectra of the NIR region [ 18 ], when NIR light was irradiated on the polymeric bilayer actuator, the actuator would experience a fast temperature elevation and then a controllable deformation process.…”

Section: Resultsmentioning

confidence: 99%

A Polymeric Bilayer Multi-Legged Soft Millirobot with Dual Actuation and Humidity Sensing

Tian

et al. 2021

Sensors

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There are numerous works that report wirelessly controlling the locomotion of soft robots through a single actuation method of light or magnetism. However, coupling multiple driving modes to improve the mobility of robots is still in its infancy. Here, we present a soft multi-legged millirobot that can move, climb a slope, swim and detect a signal by near-infrared irradiation (NIR) light or magnetic field dual actuation. Due to the design of the feet structure, our soft millirobot incorporates the advantages of a single actuation mode of light or magnetism. Furthermore, it can execute a compulsory exercise to sense a signal and analyze the ambience fluctuation in a narrow place. This work provides a novel alternative for soft robots to achieve multimode actuation and signal sensing.

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Experimental study on mechanical performance of polydimethylsiloxane (PDMS) at various temperatures

Cited by 67 publications

References 38 publications

Mechanoluminescence Rebrightening the Prospects of Stress Sensing: A Review

Mechanoluminescence Rebrightening the Prospects of Stress Sensing: A Review

Polydimethylsiloxane Composites Characterization and Its Applications: A Review

A Polymeric Bilayer Multi-Legged Soft Millirobot with Dual Actuation and Humidity Sensing

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